EP 0821336 B1 20020814 - A deflection circuit having a controllable sawtooth generator
Title (en)
A deflection circuit having a controllable sawtooth generator
Title (de)
Ablenkschaltung mit kontrollierbarem Sägezahngenerator
Title (fr)
Circuit de déflexion avec générateur de balayage contrôlable
Publication
Application
Priority
- EP 93102826 A 19930224
- US 84306392 A 19920302
Abstract (en)
[origin: EP0560117A1] In a vertical sawtooth generator (10,14) of a vertical deflection circuit, a first comparator (19) generates an output signal when a retrace portion (RETRACE) of a sawtooth signal (VRAMP) is at a first magnitude (VLOW) to initiate a vertical trace portion of the sawtooth signal. An amplifier (23) responsive to the sawtooth signal generates a feedback current (IOUT) at a time (H. LINE #210, Fig. 2c) that occurs more than one-half of the length of vertical trace portion after vertical trace is initiated. The feedback current is coupled to a capacitor (22) to develop a capacitor voltage (VAGC). The capacitor voltage is applied via a voltage-to-current converter (21) to an integrating capacitor (14) to develop in the integrating capacitor the trace portion of the sawtooth signal. <IMAGE>
IPC 1-7
IPC 8 full level
G01R 13/24 (2006.01); G09G 1/04 (2006.01); H04N 3/16 (2006.01); H04N 3/223 (2006.01)
CPC (source: EP KR US)
G01R 13/24 (2013.01 - EP US); G09G 1/04 (2013.01 - EP US); H04N 3/16 (2013.01 - KR); H04N 3/223 (2013.01 - EP US)
Designated contracting state (EPC)
DE ES FR GB IT PT
DOCDB simple family (publication)
EP 0560117 A1 19930915; EP 0560117 B1 19980708; BR 9300689 A 19930908; CA 2089291 A1 19930903; CA 2089291 C 20020416; CN 1043943 C 19990630; CN 1076571 A 19930922; CN 1205802 C 20050608; CN 1243381 A 20000202; CN 1245013 C 20060308; CN 1514641 A 20040721; DE 69319470 D1 19980813; DE 69319470 T2 19981112; DE 69332213 D1 20020919; EP 0821336 A2 19980128; EP 0821336 A3 19980311; EP 0821336 B1 20020814; ES 2118149 T3 19980916; ES 2181966 T3 20030301; JP 2001211344 A 20010803; JP 2003153029 A 20030523; JP 3384825 B2 20030310; JP 3530850 B2 20040524; JP H0670184 A 19940311; KR 100296435 B1 20010807; KR 100296436 B1 20011024; KR 930020948 A 19931020; MX 9301170 A 19940729; MY 106933 A 19950830; PT 821336 E 20021231; SG 66244 A1 19990720; TR 28061 A 19960102; US 5250879 A 19931005; VN 344 A1 19970425
DOCDB simple family (application)
EP 93102826 A 19930224; BR 9300689 A 19930226; CA 2089291 A 19930211; CN 03160200 A 19930301; CN 93102485 A 19930301; CN 98121542 A 19981020; DE 69319470 T 19930224; DE 69332213 T 19930224; EP 97117238 A 19930224; ES 93102826 T 19930224; ES 97117238 T 19930224; JP 2000371870 A 20001206; JP 2002319446 A 20021101; JP 6757993 A 19930302; KR 19980005902 A 19980225; KR 930002667 A 19930225; MX 9301170 A 19930302; MY PI19930251 A 19930216; PT 97117238 T 19930224; SG 1996003507 A 19930224; TR 16193 A 19930301; US 95859492 A 19921008; VN 47193 A 19930206